Development of Heating and Cooling System with New Heat Exchange Cycle for High Efficiency and Peak Power Reduction Using Real time Constant Refrigerant Pressure ControlChoi, Sun-Young; Lee, Young-Kug; Choi, Myeong-Gwang; Choi, Tae-Won;

Abstract

Systemic heating and cooling air conditioning systems are popular in various industrial fields and even home. Recently, the rate of supply of this kind of multi-heat pump has been increased under ESCO financing supporting system. Generally the heat pumping system has a structural simplicity and easy installation benefits. and has good running efficiency under normal designed condition. But under extreme climate condition (over , under ), this system exposes abnormal power consumption. It causes high progressive electric power rates and resultant peak power capacity of power plant. In this paper, a novel system concept of buffering refrigerant accumulator and constant pressure control system to relieve peak power load is proposed and this system`s utility is verified with an prototype experimental system.